Air compressor



FIG. 1 is a perspective view of an air compressor, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and

FIG. 8 is an operational plan view thereof for reference showing the air compressor is attached to an air tank, wherein the broken lines are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an air compressor, as shown and described. 